多项选择题
A.0.3mm B.0.7mm C.0.4mm D.0.6mm
A.0.2mm B.0.3mm C.0.5mm D.0.6mm
A.DJ05经纬仪 B.DJ1经纬仪 C.DJ2经纬仪 D.DJ6经纬仪
A.7.5m B.5.0m C.2.0m D.1.5m
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